USB sound card



FIG. 1 is a perspective front, left and top view of a USB sound card showing my new design;

FIG. 2 is a perspective rear, right and top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a rear view of thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line representations of the switches and LED indicator in the drawings are for the purpose of illustrating unclaimed portions of the USB sound card and form no part of the claimed design.

The grayscale tone is included for the purpose of shading and any darker areas are due to shadowing. 

I claim the ornamental design for a USB sound card, as shown and described. 